/* ============================================================
   BASETFI — registry/field-log design system
   Metaphor: a living package index. Version tags, hash chips,
   verification seals on a cool-white ground.
   ============================================================ */

:root {
  --paper: #f7f8fc;
  --paper-raised: #ffffff;
  --ink: #10122b;
  --ink-soft: #3d4066;
  --ink-mute: #6b6f94;
  --line: #e3e6f2;
  --violet: #5b3df5;
  --violet-deep: #3f22c9;
  --violet-wash: #efecfe;
  --mint: #12b76a;
  --mint-wash: #e6f8ef;
  --amber: #f79009;
  --amber-wash: #fef3e4;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --display: "Space Grotesk", "Segoe UI", sans-serif;
  --radius-s: 8px;
  --radius-m: 16px;
  --radius-l: 28px;
  --shadow-card: 0 2px 6px rgba(16, 18, 43, .05), 0 18px 44px -18px rgba(16, 18, 43, .18);
  --shadow-pop: 0 24px 70px -20px rgba(63, 34, 201, .35);
  --wrap: 1180px;
  --focus-ring: 0 0 0 3px var(--paper), 0 0 0 6px var(--violet);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  font-family: var(--display);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--violet-deep); }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible,
input:focus-visible, textarea:focus-visible, select:focus-visible, summary:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-s);
}

h1, h2, h3, h4 { line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.4rem, 5.4vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; }

/* skip link */
.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 200;
  background: var(--ink); color: #fff; padding: .7rem 1.2rem;
  border-radius: var(--radius-s); text-decoration: none;
  transition: top .2s ease;
}
.skip-link:focus { top: 1rem; color: #fff; }

/* layout primitives (deliberately non-standard names) */
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2.5rem); }
.slice { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.slice--tint { background: linear-gradient(180deg, var(--paper) 0%, #eef0fa 100%); }
.slice--ink { background: var(--ink); color: #e8eaf6; }
.slice--ink h2, .slice--ink h3 { color: #fff; }

.kicker {
  font-family: var(--mono); font-size: .8rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--violet-deep);
  display: inline-flex; align-items: center; gap: .5rem; margin-bottom: 1rem;
}
.kicker::before { content: ""; width: 1.6rem; height: 2px; background: var(--violet); }
.slice--ink .kicker { color: #9d8ffb; }

.lede { font-size: 1.2rem; color: var(--ink-soft); max-width: 46rem; }
.slice--ink .lede { color: #b9bde0; }

/* hash chips & version tags */
.hashchip {
  font-family: var(--mono); font-size: .78rem;
  background: var(--violet-wash); color: var(--violet-deep);
  border: 1px solid #d9d2fb; border-radius: 999px;
  padding: .18rem .7rem; white-space: nowrap;
}
.vertag {
  font-family: var(--mono); font-size: .72rem; font-weight: 600;
  background: var(--ink); color: #9d8ffb; border-radius: 6px;
  padding: .12rem .5rem;
}
.seal {
  display: inline-flex; align-items: center; gap: .35rem;
  font-family: var(--mono); font-size: .75rem; font-weight: 600;
  color: var(--mint); }
.seal svg { flex: none; }

/* header */
.masthead {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247, 248, 252, .88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.masthead__in { display: flex; align-items: center; gap: 1.5rem; padding-block: .8rem; }
.brandmark { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); font-weight: 700; font-size: 1.25rem; letter-spacing: -.02em; }
.brandmark svg { flex: none; }
.brandmark .vertag { margin-left: .2rem; }
.navmain { margin-left: auto; }
.navmain__list { display: flex; gap: .25rem; list-style: none; margin: 0; padding: 0; }
.navmain__list a {
  display: block; padding: .5rem .9rem; border-radius: 999px;
  text-decoration: none; color: var(--ink-soft); font-weight: 500; font-size: .95rem;
}
.navmain__list a:hover { background: var(--violet-wash); color: var(--violet-deep); }
.navmain__list a[aria-current="page"] { background: var(--ink); color: #fff; }
.ghlink {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.4rem; height: 2.4rem; border-radius: 50%;
  color: var(--ink-soft); border: 1px solid var(--line);
  transition: color .15s ease, border-color .15s ease, transform .15s ease;
}
.ghlink:hover { color: var(--violet-deep); border-color: var(--violet); transform: translateY(-2px); }
.navtoggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: var(--radius-s); padding: .5rem .7rem; font: inherit; cursor: pointer; }
@media (max-width: 760px) {
  .navtoggle { display: block; }
  .navmain { display: none; position: absolute; inset: 100% 0 auto 0; background: var(--paper-raised); border-bottom: 1px solid var(--line); padding: 1rem; }
  .navmain[data-open="true"] { display: block; }
  .navmain__list { flex-direction: column; }
}

/* hero */
.hero { position: relative; overflow: hidden; padding-block: clamp(1.5rem, 4vw, 3rem) clamp(3rem, 7vw, 5.5rem); }
.hero::before {
  content: ""; position: absolute; inset: -30% -10% auto -10%; height: 130%;
  background:
    radial-gradient(42rem 26rem at 78% 12%, rgba(91, 61, 245, .16), transparent 60%),
    radial-gradient(30rem 22rem at 12% 78%, rgba(18, 183, 106, .12), transparent 60%);
  pointer-events: none;
}
.hero__grid { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem; align-items: start; }
@media (max-width: 900px) { .hero__grid { grid-template-columns: 1fr; } }
.hero__panel {
  background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: var(--radius-l); box-shadow: var(--shadow-card); padding: 1.25rem;
}
.hero__panel img { border-radius: var(--radius-m); }

.cta-row { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.8rem; }
.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  font: 600 1rem var(--display); text-decoration: none; cursor: pointer;
  border-radius: 999px; padding: .85rem 1.7rem; border: 2px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--prime { background: var(--violet); color: #fff; box-shadow: var(--shadow-pop); }
.btn--prime:hover { background: var(--violet-deep); color: #fff; }
.btn--ghost { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn--ghost:hover { background: var(--ink); color: #fff; }
.btn--mint { background: var(--mint); color: #fff; }

/* stat strip */
.statline { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.4rem; padding: 0; list-style: none; }
.statline li {
  background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: var(--radius-m); padding: .8rem 1.2rem; min-width: 9.5rem;
}
.statline b { display: block; font-size: 1.5rem; letter-spacing: -.02em; }
.statline span { font-family: var(--mono); font-size: .72rem; color: var(--ink-mute); text-transform: uppercase; letter-spacing: .1em; }

/* registry cards */
.reggrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.4rem; margin-top: 2.5rem; }
.regcard {
  background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: var(--radius-m); padding: 1.6rem; box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; gap: .7rem;
  transition: transform .18s ease, box-shadow .18s ease;
}
.regcard:hover { transform: translateY(-4px); box-shadow: var(--shadow-pop); }
.regcard__top { display: flex; align-items: center; justify-content: space-between; gap: .6rem; }
.regcard h3 { margin: 0; }
.regcard p { color: var(--ink-soft); margin: 0; flex: 1; }
.regcard__foot { display: flex; align-items: center; flex-wrap: wrap; gap: .6rem; border-top: 1px dashed var(--line); padding-top: .8rem; }
.regcard__foot a {
  font-family: var(--mono); font-weight: 600; font-size: .82rem;
  text-decoration: none; min-width: 0; overflow-wrap: anywhere; word-break: break-all;
}
.regcard__foot a:hover { text-decoration: underline; }

/* bitcoin feature */
.btc-feature { display: grid; grid-template-columns: .9fr 1.1fr; gap: 3rem; align-items: center; }
@media (max-width: 900px) { .btc-feature { grid-template-columns: 1fr; } }
.btc-medal {
  aspect-ratio: 1; border-radius: 50%; display: grid; place-items: center;
  background: radial-gradient(circle at 32% 28%, #ffb84d, var(--amber) 55%, #b25e00);
  box-shadow: inset 0 -14px 34px rgba(0,0,0,.25), var(--shadow-card);
  max-width: 300px; margin-inline: auto; width: 100%;
}
.btc-medal span { font-size: clamp(4rem, 9vw, 6.5rem); font-weight: 700; color: #fff; text-shadow: 0 3px 10px rgba(0,0,0,.3); }

/* photo strip */
.photorail { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; margin-top: 2.5rem; }
@media (max-width: 760px) { .photorail { grid-template-columns: 1fr; } }
.photorail img { border-radius: var(--radius-m); border: 1px solid var(--line); box-shadow: var(--shadow-card); width: 100%; object-fit: cover; aspect-ratio: 4 / 3; }

/* submit-your-tool band */
.pingband {
  background: linear-gradient(120deg, var(--violet-deep), var(--violet) 55%, #7a5cff);
  border-radius: var(--radius-l); color: #fff;
  padding: clamp(2.2rem, 5vw, 3.6rem); display: grid;
  grid-template-columns: 1.4fr auto; gap: 2rem; align-items: center;
  box-shadow: var(--shadow-pop);
}
@media (max-width: 760px) { .pingband { grid-template-columns: 1fr; } }
.pingband h2 { color: #fff; margin-bottom: .4rem; }
.pingband p { color: #d9d4fb; margin: 0; max-width: 38rem; }
.pingband .btn { background: #fff; color: var(--violet-deep); }
.pingband .btn:hover { background: var(--ink); color: #fff; }

/* laurel quotes */
.quoterow { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.6rem; margin-top: 2.5rem; }
.laurelquote {
  position: relative; background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: var(--radius-m); padding: 2.4rem 2rem 1.6rem; text-align: center;
  box-shadow: var(--shadow-card);
}
.laurelquote .wreath { width: 74px; height: auto; margin: -4.4rem auto .8rem; display: block; background: var(--paper); border-radius: 50%; padding: 6px; }
.laurelquote blockquote { margin: 0 0 1rem; font-size: 1.08rem; color: var(--ink-soft); font-style: italic; }
.laurelquote figcaption { font-family: var(--mono); font-size: .8rem; color: var(--ink-mute); }
.laurelquote figcaption b { display: block; color: var(--ink); font-family: var(--display); font-size: .95rem; }

/* forms */
.fieldform { display: grid; gap: 1.1rem; max-width: 40rem; }
.fieldform label { font-weight: 600; font-size: .92rem; display: block; margin-bottom: .35rem; }
.fieldform input, .fieldform textarea, .fieldform select {
  width: 100%; font: inherit; color: var(--ink);
  background: var(--paper-raised); border: 1.5px solid var(--line);
  border-radius: var(--radius-s); padding: .8rem 1rem;
}
.fieldform input:focus, .fieldform textarea:focus, .fieldform select:focus { border-color: var(--violet); }
.fieldform textarea { min-height: 9rem; resize: vertical; }
.formnote { font-size: .85rem; color: var(--ink-mute); }
.formstatus { font-family: var(--mono); font-size: .85rem; color: var(--mint); min-height: 1.4em; margin: 0; }

/* faq accordion */
.faqstack { display: grid; gap: .9rem; margin-top: 2.2rem; }
.faqitem { background: var(--paper-raised); border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; }
.faqitem__btn {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  background: none; border: 0; font: 600 1.05rem var(--display); color: var(--ink);
  padding: 1.2rem 1.4rem; cursor: pointer; text-align: left;
}
.faqitem__btn .chev { flex: none; transition: transform .2s ease; }
.faqitem__btn[aria-expanded="true"] .chev { transform: rotate(180deg); }
.faqitem__panel { padding: 0 1.4rem 1.3rem; color: var(--ink-soft); }
.faqitem__panel[hidden] { display: none; }

/* legal layout */
.legalgrid { display: grid; grid-template-columns: 250px 1fr; gap: 3rem; align-items: start; }
@media (max-width: 860px) { .legalgrid { grid-template-columns: 1fr; } }
.legaltoc { position: sticky; top: 6rem; background: var(--paper-raised); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 1.2rem; }
.legaltoc h2 { font-size: .8rem; font-family: var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--ink-mute); }
.legaltoc ol { margin: 0; padding-left: 1.1rem; display: grid; gap: .4rem; font-size: .92rem; }
.legaltoc a { text-decoration: none; color: var(--ink-soft); }
.legaltoc a[aria-current="true"] { color: var(--violet-deep); font-weight: 700; }
.legaldoc h2 { margin-top: 2.2rem; scroll-margin-top: 6rem; }
.legaldoc table, .cookietable { width: 100%; border-collapse: collapse; font-size: .92rem; margin: 1rem 0 1.6rem; }
.legaldoc th, .legaldoc td, .cookietable th, .cookietable td { border: 1px solid var(--line); padding: .6rem .8rem; text-align: left; vertical-align: top; }
.legaldoc th, .cookietable th { background: var(--violet-wash); font-family: var(--mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }
.docmeta { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2rem; }

/* footer */
.colophon { background: var(--ink); color: #b9bde0; padding-block: 3.5rem 2rem; margin-top: 4rem; }
.colophon a { color: #c9c4f7; }
.colophon__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2.5rem; }
@media (max-width: 860px) { .colophon__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .colophon__grid { grid-template-columns: 1fr; } }
.colophon h2, .colophon h3 { color: #fff; font-size: .85rem; font-family: var(--mono); text-transform: uppercase; letter-spacing: .12em; }
.colophon ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; font-size: .95rem; }
.colophon address { font-style: normal; line-height: 1.7; }
.colophon__base { border-top: 1px solid #262950; margin-top: 2.6rem; padding-top: 1.4rem; font-size: .85rem; display: grid; gap: .6rem; }
.colophon__base .fineline { font-family: var(--mono); font-size: .75rem; color: #7c80a8; }
.cookie-reopen { background: none; border: 0; padding: 0; font: inherit; color: #c9c4f7; text-decoration: underline; cursor: pointer; }

/* consent banner + dialog */
.consent-banner {
  position: fixed; inset: auto 1rem 1rem 1rem; z-index: 300; margin-inline: auto; max-width: 46rem;
  background: var(--paper-raised); border: 1px solid var(--line); border-radius: var(--radius-m);
  box-shadow: var(--shadow-pop); padding: 1.4rem; display: none;
}
.consent-banner[data-show="true"] { display: block; }
.consent-banner .cta-row { margin-top: 1rem; }
.consent-veil { position: fixed; inset: 0; z-index: 310; background: rgba(16, 18, 43, .55); display: none; }
.consent-veil[data-show="true"] { display: block; }
.consent-modal {
  position: fixed; z-index: 320; inset: 50% auto auto 50%; transform: translate(-50%, -50%);
  width: min(34rem, calc(100vw - 2rem)); max-height: calc(100vh - 3rem); overflow: auto;
  background: var(--paper-raised); border-radius: var(--radius-m); padding: 1.8rem;
  box-shadow: var(--shadow-pop); display: none;
}
.consent-modal[data-show="true"] { display: block; }
.consent-cat { display: flex; gap: 1rem; align-items: flex-start; border: 1px solid var(--line); border-radius: var(--radius-s); padding: 1rem; margin-bottom: .9rem; }
.consent-cat input { width: 1.2rem; height: 1.2rem; margin-top: .2rem; accent-color: var(--violet); }
.consent-cat b { display: block; }
.consent-cat small { color: var(--ink-mute); }

/* misc */
.crumbtrail { font-family: var(--mono); font-size: .8rem; color: var(--ink-mute); margin-bottom: 1.4rem; }
.crumbtrail a { color: var(--ink-mute); }
.errpage { text-align: center; padding-block: 6rem; }
.errpage .bignum { font-family: var(--mono); font-size: clamp(5rem, 18vw, 10rem); font-weight: 700; color: var(--violet); margin: 0; line-height: 1; }